RTS SIP-ISDN, Hardware & Software Manual, Page: 88 / 102

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A5.3 Audio interfaces
The system incorporates analogue and digital AES/EBU Audio interfaces. For switching
you can use display and keypad or the PC software.
A5.3.1 Analogue Audio interface
A5.3.2 Digital AES/EBU Audio interface
The RTS SIP-ISDN System incorporates two digital inputs/outputs which are physically
one AES/EBU interface. The input as well as the output has its own sample rate con-
verter providing that a digital source with 32, 44.1 or 48-kHz can be connected directly.
For external clocking (48-kHz only) the word clock input or output may be used.
TAB. 5 PIN ASSIGNMENT: ANALOGUE INPUT (AUDIO 1/2 IN)
Socket: 3-pole XLR
Pin Signal Elektrical characteristics
1 GND Input level: adjustable -3 .... +9 dBu
Impedance: > 25 k
Ω
Head room: 6 dB
2 AUDIO IN a
3 AUDIO IN b
TAB. 6 PIN ASSIGNMENT: ANALOGUE OUTPUT (AUDIO 1/2 OUT)
Connector: 3-pole XLR
Pin Signal Elektrical characteristics
1 GND Output level: adjustable -3 .... +9 dBu
Impedance: < 50
Ω
Head room: 6 dB
2 AUDIO OUT a
3 AUDIO OUT b
TAB. 7 PIN ASSIGNMENT: DIGITAL INPUT (AES IN)
Socket: 3-pole XLR
Pin Signal Electrical characteristics
1 GND IEC-958
2 AUDIO IN a
3 AUDIO IN b
TAB. 8 PIN ASSIGNMENT: DIGITAL OUTPUT (AES OUT)
Connector: 3-pole XLR
Pin Signal Elektrical characteristics
1 GND IEC-958
2 AUDIO OUT a
3 AUDIO OUT b
Push
1 2
3
2 1
3
Push
1 2
3
2 1
3